865193 : Sample for Open the document from box cloud storage and save the document to box cloud storage

Open and Save for Blazor PDF Viewer(next gen)/PDFViewerSample.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.8.34219.65
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PDFViewerSample", "PDFViewerSample\PDFViewerSample.csproj", "{122086AC-F5C1-4E02-A2F7-9FD64A0C9C38}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{122086AC-F5C1-4E02-A2F7-9FD64A0C9C38}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{122086AC-F5C1-4E02-A2F7-9FD64A0C9C38}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{122086AC-F5C1-4E02-A2F7-9FD64A0C9C38}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{122086AC-F5C1-4E02-A2F7-9FD64A0C9C38}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {58F1D4B3-EEB0-4A76-AC65-81120F954551}
+	EndGlobalSection
+EndGlobal

Open and Save for Blazor PDF Viewer(next gen)/PDFViewerSample/App.razor

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+<Router AppAssembly="@typeof(App).Assembly">
+    <Found Context="routeData">
+        <RouteView RouteData="@routeData" DefaultLayout="@typeof(MainLayout)" />
+        <FocusOnNavigate RouteData="@routeData" Selector="h1" />
+    </Found>
+    <NotFound>
+        <PageTitle>Not found</PageTitle>
+        <LayoutView Layout="@typeof(MainLayout)">
+            <p role="alert">Sorry, there's nothing at this address.</p>
+        </LayoutView>
+    </NotFound>
+</Router>

Open and Save for Blazor PDF Viewer(next gen)/PDFViewerSample/Data/WeatherForecast.cs

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+namespace PDFViewerSample.Data
+{
+    public class WeatherForecast
+    {
+        public DateOnly Date { get; set; }
+
+        public int TemperatureC { get; set; }
+
+        public int TemperatureF => 32 + (int)(TemperatureC / 0.5556);
+
+        public string? Summary { get; set; }
+    }
+}

Open and Save for Blazor PDF Viewer(next gen)/PDFViewerSample/Data/WeatherForecastService.cs

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+namespace PDFViewerSample.Data
+{
+    public class WeatherForecastService
+    {
+        private static readonly string[] Summaries = new[]
+        {
+            "Freezing", "Bracing", "Chilly", "Cool", "Mild", "Warm", "Balmy", "Hot", "Sweltering", "Scorching"
+        };
+
+        public Task<WeatherForecast[]> GetForecastAsync(DateOnly startDate)
+        {
+            return Task.FromResult(Enumerable.Range(1, 5).Select(index => new WeatherForecast
+            {
+                Date = startDate.AddDays(index),
+                TemperatureC = Random.Shared.Next(-20, 55),
+                Summary = Summaries[Random.Shared.Next(Summaries.Length)]
+            }).ToArray());
+        }
+    }
+}

Open and Save for Blazor PDF Viewer(next gen)/PDFViewerSample/PDFViewerSample.csproj

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+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net7.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Box.V2.Core" Version="5.6.1" />
+    <PackageReference Include="Syncfusion.Blazor.SfPdfViewer" Version="24.1.44" />
+    <PackageReference Include="Syncfusion.Blazor.Themes" Version="24.1.44" />
+  </ItemGroup>
+
+</Project>

Open and Save for Blazor PDF Viewer(next gen)/PDFViewerSample/Pages/Counter.razor

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+@page "/counter"
+
+<PageTitle>Counter</PageTitle>
+
+<h1>Counter</h1>
+
+<p role="status">Current count: @currentCount</p>
+
+<button class="btn btn-primary" @onclick="IncrementCount">Click me</button>
+
+@code {
+    private int currentCount = 0;
+
+    private void IncrementCount()
+    {
+        currentCount++;
+    }
+}

Open and Save for Blazor PDF Viewer(next gen)/PDFViewerSample/Pages/Error.cshtml

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+@page
+@model PDFViewerSample.Pages.ErrorModel
+
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
+    <title>Error</title>
+    <link href="~/css/bootstrap/bootstrap.min.css" rel="stylesheet" />
+    <link href="~/css/site.css" rel="stylesheet" asp-append-version="true" />
+</head>
+
+<body>
+    <div class="main">
+        <div class="content px-4">
+            <h1 class="text-danger">Error.</h1>
+            <h2 class="text-danger">An error occurred while processing your request.</h2>
+
+            @if (Model.ShowRequestId)
+            {
+                <p>
+                    <strong>Request ID:</strong> <code>@Model.RequestId</code>
+                </p>
+            }
+
+            <h3>Development Mode</h3>
+            <p>
+                Swapping to the <strong>Development</strong> environment displays detailed information about the error that occurred.
+            </p>
+            <p>
+                <strong>The Development environment shouldn't be enabled for deployed applications.</strong>
+                It can result in displaying sensitive information from exceptions to end users.
+                For local debugging, enable the <strong>Development</strong> environment by setting the <strong>ASPNETCORE_ENVIRONMENT</strong> environment variable to <strong>Development</strong>
+                and restarting the app.
+            </p>
+        </div>
+    </div>
+</body>
+
+</html>

Open and Save for Blazor PDF Viewer(next gen)/PDFViewerSample/Pages/Error.cshtml.cs

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+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.RazorPages;
+using System.Diagnostics;
+
+namespace PDFViewerSample.Pages
+{
+    [ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
+    [IgnoreAntiforgeryToken]
+    public class ErrorModel : PageModel
+    {
+        public string? RequestId { get; set; }
+
+        public bool ShowRequestId => !string.IsNullOrEmpty(RequestId);
+
+        private readonly ILogger<ErrorModel> _logger;
+
+        public ErrorModel(ILogger<ErrorModel> logger)
+        {
+            _logger = logger;
+        }
+
+        public void OnGet()
+        {
+            RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier;
+        }
+    }
+}

Open and Save for Blazor PDF Viewer(next gen)/PDFViewerSample/Pages/FetchData.razor

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+@page "/fetchdata"
+@using PDFViewerSample.Data
+@inject WeatherForecastService ForecastService
+
+<PageTitle>Weather forecast</PageTitle>
+
+<h1>Weather forecast</h1>
+
+<p>This component demonstrates fetching data from a service.</p>
+
+@if (forecasts == null)
+{
+    <p><em>Loading...</em></p>
+}
+else
+{
+    <table class="table">
+        <thead>
+            <tr>
+                <th>Date</th>
+                <th>Temp. (C)</th>
+                <th>Temp. (F)</th>
+                <th>Summary</th>
+            </tr>
+        </thead>
+        <tbody>
+            @foreach (var forecast in forecasts)
+            {
+                <tr>
+                    <td>@forecast.Date.ToShortDateString()</td>
+                    <td>@forecast.TemperatureC</td>
+                    <td>@forecast.TemperatureF</td>
+                    <td>@forecast.Summary</td>
+                </tr>
+            }
+        </tbody>
+    </table>
+}
+
+@code {
+    private WeatherForecast[]? forecasts;
+
+    protected override async Task OnInitializedAsync()
+    {
+        forecasts = await ForecastService.GetForecastAsync(DateOnly.FromDateTime(DateTime.Now));
+    }
+}

Open and Save for Blazor PDF Viewer(next gen)/PDFViewerSample/Pages/Index.razor

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+@using Box.V2;
+@using Box.V2.Auth;
+@using Box.V2.Config;
+@using Box.V2.Models;
+@using Syncfusion.Blazor.SfPdfViewer;
+@using Syncfusion.Blazor.Buttons
+
+@page "/"
+<SfButton @onclick="OnClick">Save file to Box storage</SfButton>
+<SfPdfViewer2 DocumentPath="@DocumentPath"
+              @ref="viewer"
+              Height="100%"
+              Width="100%">
+</SfPdfViewer2>
+
+@code {
+    private SfPdfViewer2 viewer;
+    private string DocumentPath { get; set; }
+    private readonly string accessToken = "Your Box Storage Access Token";
+    private readonly string folderID = "Your Folder ID";
+    private readonly string clientID = "Your Box Storage ClientID";
+    private readonly string clientSecret = "Your Box Storage ClientSecret";
+    private readonly string fileName = "File Name to be loaded into Syncfusion PDF Viewer";
+
+    protected override async Task OnInitializedAsync()
+    {
+        // Initialize the Box API client with your authentication credentials
+        var auth = new OAuthSession(accessToken, "YOUR_REFRESH_TOKEN", 3600, "bearer");
+        var config = new BoxConfigBuilder(clientID, clientSecret, new Uri("http://boxsdk")).Build();
+        var client = new BoxClient(config, auth);
+
+        // Download the file from Box storage
+        var items = await client.FoldersManager.GetFolderItemsAsync(folderID, 1000, autoPaginate: true);
+        var files = items.Entries.Where(i => i.Type == "file");
+
+        // Filter the files based on the objectName
+        var matchingFile = files.FirstOrDefault(file => file.Name == fileName);
+
+        if (matchingFile != null)
+        {
+            // Fetch the file from Box storage by its ID
+            using (var fileStream = await client.FilesManager.DownloadAsync(matchingFile.Id).ConfigureAwait(false))
+            {
+                using (MemoryStream stream = new MemoryStream())
+                {
+                    await fileStream.CopyToAsync(stream).ConfigureAwait(false);
+
+                    // Reset the position to the beginning of the stream
+                    stream.Position = 0;
+                    DocumentPath = "data:application/pdf;base64," + Convert.ToBase64String(stream.ToArray());
+                }
+            }
+        }
+        else
+        {
+            // Handle case where the file is not found
+            Console.WriteLine("File not found in the specified folder.");
+        }
+    }
+
+    public async void OnClick(MouseEventArgs args)
+    {
+        byte[] data = await viewer.GetDocumentAsync();
+        string result = Path.GetFileNameWithoutExtension(fileName);
+        string FileName = result + "_downloaded.pdf";
+        // Initialize the Box API client with your authentication credentials
+        var auth = new OAuthSession(accessToken, "YOUR_REFRESH_TOKEN", 3600, "bearer");
+        var config = new BoxConfigBuilder(clientID, clientSecret, new Uri("http://boxsdk")).Build();
+        var client = new BoxClient(config, auth);
+
+        var fileRequest = new BoxFileRequest
+            {
+                Name = FileName,
+                Parent = new BoxFolderRequest { Id = folderID },
+            };
+
+        using (var stream = new MemoryStream(data))
+        {
+            var boxFile = await client.FilesManager.UploadAsync(fileRequest, stream);
+        }
+
+    }
+}

Open and Save for Blazor PDF Viewer(next gen)/PDFViewerSample/Pages/_Host.cshtml

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+@page "/"
+@using Microsoft.AspNetCore.Components.Web
+@namespace PDFViewerSample.Pages
+@addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers
+
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <base href="~/" />
+    <link rel="stylesheet" href="css/bootstrap/bootstrap.min.css" />
+    <link href="css/site.css" rel="stylesheet" />
+    <link href="PDFViewerSample.styles.css" rel="stylesheet" />
+    <link rel="icon" type="image/png" href="favicon.png"/>
+    <component type="typeof(HeadOutlet)" render-mode="ServerPrerendered" />
+    <!-- Syncfusion Blazor PDF Viewer (Next Gen) control's theme style sheet -->
+    <link href="_content/Syncfusion.Blazor.Themes/bootstrap5.css" rel="stylesheet" />
+    <!-- Syncfusion Blazor PDF Viewer (Next Gen) control's scripts -->
+    <script src="_content/Syncfusion.Blazor.SfPdfViewer/scripts/syncfusion-blazor-sfpdfviewer.min.js" type="text/javascript"></script>
+</head>
+<body>
+    <component type="typeof(App)" render-mode="ServerPrerendered" />
+
+    <div id="blazor-error-ui">
+        <environment include="Staging,Production">
+            An error has occurred. This application may no longer respond until reloaded.
+        </environment>
+        <environment include="Development">
+            An unhandled exception has occurred. See browser dev tools for details.
+        </environment>
+        <a href="" class="reload">Reload</a>
+        <a class="dismiss">🗙</a>
+    </div>
+
+    <script src="_framework/blazor.server.js"></script>
+</body>
+</html>

Open and Save for Blazor PDF Viewer(next gen)/PDFViewerSample/Program.cs

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+using Microsoft.AspNetCore.Components;
+using Microsoft.AspNetCore.Components.Web;
+using PDFViewerSample.Data;
+using Syncfusion.Blazor;
+
+var builder = WebApplication.CreateBuilder(args);
+
+// Add services to the container.
+builder.Services.AddRazorPages();
+builder.Services.AddServerSideBlazor().AddHubOptions(o => { o.MaximumReceiveMessageSize = 102400000; });
+// Add Syncfusion Blazor service to the container.
+builder.Services.AddSyncfusionBlazor();
+builder.Services.AddSingleton<WeatherForecastService>();
+
+var app = builder.Build();
+
+// Configure the HTTP request pipeline.
+if (!app.Environment.IsDevelopment())
+{
+    app.UseExceptionHandler("/Error");
+    // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
+    app.UseHsts();
+}
+
+app.UseHttpsRedirection();
+
+app.UseStaticFiles();
+
+app.UseRouting();
+
+app.MapBlazorHub();
+app.MapFallbackToPage("/_Host");
+
+app.Run();